Hi, I keep getting the following message in my BOINC client Notices:

climateprediction.net: Notice from server
Invalid or missing account key. To fix, remove and add this project.
25/02/2024 12:50:51 PM

When I select the project to try to remove it though, the Remove button doesn't enable.

I hate when you post to a board after trying many things. Then try one more thing and solve it.

The issue appears to be linked to me using Science United as a manager.
When I chose to Stop Using Science United in the Tools Menu, I was able to then select to remove the Climate Predition project from my list and re-add it again.

Strangely, when I reconnect to Science Manager, the issue to remove Climate Prediction as a project starts again.
And I've noticed that the name shown in the Account column is changed.

Anyhow, problem solved.

Science United will not allow you to detach from a give project, so you first thing you have to do is remove Science United, then you have full control of the projects you run.